What subatomic particle is specifically responsible for combining the atoms together to form a new substance? Group of answer choices

proton

neutron

nucleus

valance electron

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Which branches of natural science include the study of an organism that lived 10 million years ago

Distinguish between linear momentum and angular momentum